// 数组 array  代表：有顺序的集合

let list = [ 6, 99, 999 ];

console.log(list);


let songList = [
    { id: 66, name: '夏目',duration: 4 },
    { id: 77, name: '夏木',duration: 4 },
    { id: 88, name: '夏沐',duration: 4 },
];

console.log(songList);

